Humidifier



FIG. 1 is a top perspective view of the humidifier;

FIG. 2 is a front elevational view of the humidifier of FIG. 1;

FIG. 3 is a rear elevational view of the humidifier of FIG. 1;

FIG. 4 is a right elevational view of the humidifier of FIG.;

FIG. 5 is a left elevational view of the humidifier of FIG. 1; and,

FIG. 6 is a top plan view of the humidifier of FIG. 1.

The broken lines are included for the purpose of illustrating portions of the humidifier that forms no part of the claimed design. 

The ornamental design for humidifier, as shown and described. 